Fix unused imports

Author: artembilan

spring-integration-amqp/src/test/java/org/springframework/integration/amqp/config/AmqpOutboundChannelAdapterParserTests.java

@@ -26,7 +26,6 @@
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.isNull;
-import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.mock;
@@ -44,7 +43,6 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mockito;
-import org.mockito.internal.stubbing.answers.DoesNothing;
 
 import org.springframework.amqp.core.MessageDeliveryMode;
 import org.springframework.amqp.core.MessageProperties;